The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release thyroid-stimulating hormone (TSH).
Water Opal is a colourless, clear opal with a play of colour. It is rare and valuable in the Realms, where it is used in scrying devices.ater Opals are valuable gems in the game which may be found. This item appears in Baldur's Gate (game) , Baldur's Gate: Enhanced Edition, Baldur's Gate II: Shadows of Amn and Baldur's Gate II: Enhanced Edition.
Fire Opal is a term used for colorful, transparent to translucent opal with a background color that is a fire-like hue of yellow to orange to red. It might or might not exhibit play-of-color (the typical flashes of spectral colors that can be seen when a precious opal is turned under a source of light).